<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>
<body>
    <form action="/login" method="POST">
        <label>用户名：</label><input id="userName" name="userName" type="text" />
        <label>密码：</label><input id="password" name="password" type="password" />
        <input type="submit">
    </form>
</body>
</html>